Method of rolling metal sections.



S.A.BENNER METHOD OF ROLLING METAL SECTIONS.

APPLICATION FILED MAY 20. I914.

1,226,942. Patented May 22, 1917.

FIG. 1 FIG. 2

FIG. 12

WITNESSES.

. INVENT R.

SAMUEL A. BENNER, OF PITTSBURGH, IPENNSYLVANIA.

METHOD OF ROLLING METAL SECTIONS.

Specification of Letters Patent.

Patented May 22, 1917.

Application filed Kay 20, 1914. Serial No. 839,872.

To all whom it may concern:

Be it known that I, SAMUEL A. BENNER a citizen of the United States, and resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have. invented a new and useful Improvement in Methods of Rolling Metal Sections; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to the manufacture of integral wrought metal structural members or sections, and is particularly concerned with methods of rolling or rolling and pressing such membersor sections. In the art of metal rolling and pressing, as at present practised, the character and size of the shapes which may be commercially rolled or pressed are limited by the kind and size of the rolling mills or presses, and it is found that many desired shapes and sizes of wrought, sections cannot be commercially manufactured by the usual methods by reason of these limitations.

The object of my invention therefore is to overcome these difliculties by the peculiar method of carrying out the rolling or rolling and pressing operations herein described.

The invention consists in its broader aspects in first designing a section of a form that may be produced in rolling mills of the usual standard construction, and thereafter subjectin it to finishing rolling or pressing operations to bring it to its final sha e.

I3 the following description of the methods of forming selected embodiments of the invention the terms flange and web are used for convenience to denote certain parts, in the sense in which these terms' are usually understood in the art of rolling sections of metal. That is to say, by flan e is meant that part of the section pro need by a groove cut in the plane of the diameter of a rolling mill roll, and by a web is meant that part of the section produced by faces formed in the plane of the length of the roll.

With this explanation, the invention may be stated to consist, in its primary form, in the rolling of a section comprising a flange with a web at an angle thereto on each side thereof, one web being joined into the side of the flange, and the other web joined into the base of the flange by means of a turn in said latter web, and then bending the latter web at the turn thereof, by a flattening operation in rolls or presses or otherwise. A further development of the inven- .in which Figure 1 is a cross section of one form of rolled section embodying my invention, certain modifications being in dotted outlines. Fig. 2 is a diagrammatic view indicating the shape of the rolls by which the full line section shown in Fig. 1 may be produced. Fig. 3 is a view similar to Fig. 1 showing said section bent to its final shape. Fi 4. is a view similar to Fig. 1

of a modi ed form of'section. Figs. 5, 6 and 7 are views indicating diagrammatically the various steps in bringing such section with the addition of flanges at the outside edges of the outside webs to its finished shape. Fig. 8 is a view of the finished shape of said section. Fig. 9 is aview similar to Figs. 1 and 4 of another modification. Fig. 10 shows the section Fig. 9 bent to its final shape. Fig. 11 is a view of a further modification and Fig. 12 is a view of the section 11 bent to its final shape.

The first step in my improved process eon-.

sists in the forming of a section of a shape which may be produced in rolling mills of usual standard construction. Such section is indicated in Fig. 1 in which it is shown to comprise a flange 1 which as indicated in Fig. 2, may be formed by a groove 3 in the plane of the diameter of the rolling mill roll 4. Into one side of the flange l is joined a web 5 formed by the faces 6 and 7 of the rolls 4 and 8. It will be seen by inspection of Figs. 1 and 2 that the web 5 joins into the side of the flange 1 at an angle thereto. At the opposite side of the flange is a second Web 9 which is formed by the faces 10 and 11 of the rolls 4. and 8 respectively. This web is joined into the base of the flange 1 at 12 by a turn in said web at 13. Thus is formed the blank shown in full lines in Fig. 1. The webs of this blank may be provided with any desired number of flanges such as end flanges or intermediate flanges or both. The blank thus formed may be subjected to a second rolling or pressing or bending operation which will bend the web 9 at its turn 13 and thus bring the web 9 into alines ment with the flange 1 forming the section illustrated in Fig. 3.

In the embodiment of the invention shown in Fig. 4 the preliminary section or blank comprises a palr of flanges 1616, a central web 17, the opposite ends of which are joined into the bases of the flanges 16, res ectively, by the turns 1818. Also this blank includesthe outside webs 1919 each of which is joined into a side of each of the flanges 16, respectively. Thisblank is then subjected to one or more rolling or pressing operations to bring it into final form as indicated in Figs. 5, 6 and 7 in which 20 indicates a shaping die or roll of a press or a rolling mill roll said member having a flat bottom face 21 and the inclined faces 22. The width of the face 21 is just suflicient to enter between the flanges 16-16 which serves to bend the web 17 at the turns 1818 to the shape shown in Fig. 6. The blank is then subjected to a further shaping between the members 23 and 24 which serve to flatten the web 17 and the flanges 16-16 into one plane and to bring the webs 1919 into angular relation with respect to said main web (in this case to bring them at right angles thereto.) Thus is formed the shape of section shown in Fig. 8. The section Fig. 9 consists of the flanges 2525, the intermediate web 26 joined into the sides of said flanges 2525, and the webs 27 joined into the bases of the flanges 2525, respectively, by the turns 28. This blank is then subjected to pressing or bending operations similar to those heretofore described and brought finally into the form Fig. 10. The section Fig. 11 comprises the pair of flanges 2929 one having a web 30 joined into its base bya turn 31 and having a web 32 joined into its side which web is joined into the base of the other flange 29 by a turn 33 and the last mentioned flange has a web 34 joined into its side as shown. This blank may be subjected to bending or pressing operations to flatten the webs at the turns 31 and 33 respectively, to bring the section into the form in Fig. 12.

It will be seen that the blank Fig. 4 may be considered to consist of duplicate sections such as that shown in Fig. 1 in which the webs 9 are joined together in one plane. The form of blank shown in Fig. 9 may be considered to consist of duplicate sections similar to Fig. 1 in which the webs 5 are joined in one plane. The form of blank shown in Fig. 11 may be considered to consist of duplicate sections similar to Fig. 1 in which the web 5 of one is joined to the web 9 of the other in one plane.

It will be obvious from an examination of the several sections or blanks here shown that many permutations or combinations of the section Fig. 1 may beformed to produce blanks which may subsequently be bent into forms not heretofore possible by means of methods of rolling or pressing heretofore known.

While in the preferred practice of the invention the blank is first formed by a rolling operation and then is completed by rolling or pressing operations, it is to be understood that in certain cases the original or preliminary form of the blank might be formed by a pressing operation, and that the final form may be secured by one or more subsequent pressing or rolling operations as the case may be.

The sections produced by my improved method, particularly those of the form shown in Fig. 8, and the modifications thereof, may be used as car bolsters, center, end or side sills, car side stakes, railway crossties, structural girders, structural columns, bridge floors, and in smaller form for window sash, the sections being rolled of steel preferably with the channel sides with or without the inturned flanges.

What I claim is:

1. The method of manufacturing wrought integral metal sections which consists in rolling a section, comprising a flange with a web at an angle thereto on each side thereof, one web joined into the side of the flange, and the other web joined into the base of the flange by means of a turn in said latter web, and then bending the latter web at the turn thereof by a flattening operation.

2. The method of manufacturing wrought integral metal sections which consists in rolling a' section comprising a plurality of flanges with a web on each side of each of said flanges and at an angle thereto, certain of said webs being joined into the sides of said flanges, respectively, and certain of said webs being joined into the bases of said flanges, respectively, by means of a turn in each of said latter webs and then bending the latter webs at the turns thereof, respectively, by a flattening operation.

3. The method of manufacturing wrought integral metal sections which consists in rolling a plurality of flanges, each flange having a web at an angle thereto on each side thereof, the web between the flanges being joined to the latter into the bases thereof by means of turns in said web, and then bending each web having the turn therein, at the turn, by a flattening operation.

4. The method of manufacturing wrought integral metal sections, which consists in rolling a section comprising a flangewith a web at an angle thereto on each side thereof, one web joined into the side of the flange, and the other web joined into the base of the flange by means of a turn in said latter web, and then bending the 13 latter web at the turn thereof bya flattening operation, one or both of said webs having a flange at its outer edge.

5. The methodof manufacturmg wrought.

integral metal sections which consists in rolling a section comprising a pair of flanges joined together by anintermediate web, the edges respectively of said web being joined into the bases of said flanges by a turn in the web, each of said flanges having a -web joined into the outer side thereof, and then bending'said intermediate web at itsturns by a flattening operation, to bring said intermediate web and said flanges into one plane, and to bring said side webs into -planes parallel with each other.

7. The method of manufacturing wrought integral metal sections which consists in rolling a section comprising a pair of flanges joined together by an intermediate web,-the

edges respectively of said Web being joined into the bases of said flanges by a in the web, each of said flanges having a web joined into the outer side thereof, and then bending said intermediate web at its turns by a flattenin operation to bring said intermediate we and said flanges into one plane, and to bring said side webs into planes parallel with each other, said'side webs having flanges at. their outer edges to, form with the first-mentioned flanges laterally opening channel members.

8. The method of manufacturing wrought integral metal sections which consists in rolling a section comprising a pair of flanges joined together by an intermediate web, the edges respectively of said web being joined into the bases of said flanges by a turn in the web, each of said flanges having a web joined into the outer side thereof, and then bending said intermediate web at its turns by a flattening operation to bring said intermediate web and said flanges into one plane, and to bring said side webs into planes parallel with-each other, said s1de webs having also inturned flanges at their outer edges.

In testimony whereof, I the said SAMUEL vA. BENNER have hereunto set my hand.

i SAMUE L A. BENNER. Witnesses:

J. GARFIELD HOUSTON, JOHN F. WILL. 

